docs: def add_member_to_group(self, group_id, user_id):
          """
          Add a user to a group as a member
          :param group_id:
          :param user_id:
          """
          url = self.TEAM_MEMBERS_URL % (group_id, user_id)
  
          connection = Connection(self.token)
          connection.set_url(self.production, url)
  
          return connection.post_request()